Enum ConfigPushFailure 

pub enum ConfigPushFailure {
    SendFailed(Box<MailboxSenderError>),
    ReplyTimedOut,
    ReplyChannelClosed,
}

Per-host failure modes for the attach-time config push.

Implementation detail of ConfigPushError. The variant taxonomy is not part of HM-4 or any other invariant — HM-4 commits to per-host identity in the error, not to a specific menu of failure subtypes. The variant set may grow, shrink, or be reshaped without changing the contract; tests should not pin to a specific variant unless the fixture deterministically guarantees it.

Variants

SendFailed(Box<MailboxSenderError>)

Synchronous send failure (e.g. the request port refused the post). The error is preserved for triage.

ReplyTimedOut

The awaited reply did not arrive within MESH_ATTACH_CONFIG_TIMEOUT. With request-bounce suppression (HM-3 mechanism), this is the dominant failure mode for an unreachable host: the channel-side BrokenLink is logged at debug from MailboxClient’s buffer task; the contract surface is just “did not reply in time”.

ReplyChannelClosed

The reply receiver closed before any value arrived (sender side dropped, or the local mailbox tore down).

Trait Implementations

impl Debug for ConfigPushFailure

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ConfigPushFailure

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ConfigPushFailure

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.